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          <h1 class="post-title" itemprop="name headline">JavaScript 构造器模式</h1>
        

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        <h1 id="构造器模式"><a href="#构造器模式" class="headerlink" title="构造器模式"></a>构造器模式</h1><p>在面向对象编程中，构造器是一个当新建对象的内存被分配后，用来初始化该对象的一个特殊函数。在JavaScript中几乎所有的东西都是对象，我们经常会对对象的构造器十分感兴趣。</p>
<p>对象构造器是被用来创建特殊类型的对象的，首先它要准备使用的对象，其次在对象初次被创建时，通过接收参数，构造器要用来对成员的属性和方法进行赋值。</p>
<h1 id="对象创建"><a href="#对象创建" class="headerlink" title="对象创建"></a>对象创建</h1><p>下面是我们创建对象的三种基本方式:</p>
<p>下面的每一种都会创建一个新的对象:</p>
<figure class="highlight haxe"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">var</span> <span class="keyword">new</span><span class="type">Object</span> = &#123;&#125;;</span><br><span class="line"></span><br><span class="line"><span class="comment">// or</span></span><br><span class="line"><span class="keyword">var</span> <span class="keyword">new</span><span class="type">Object</span> = Object.create( <span class="literal">null</span> );</span><br><span class="line"></span><br><span class="line"><span class="comment">// or</span></span><br><span class="line"><span class="keyword">var</span> <span class="keyword">new</span><span class="type">Object</span> = <span class="keyword">new</span> <span class="type">Object</span>();</span><br></pre></td></tr></table></figure>
<p>最后一个例子中”Object”构造器创建了一个针对特殊值的对象包装，只不过这里没有传值给它，所以它将会返回一个空对象。</p>
<p>有四种方式可以将一个键值对赋给一个对象:</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// ECMAScript 3 兼容形式</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 1\. “点号”法</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 设置属性</span></span><br><span class="line">newObject.someKey = <span class="string">"Hello World"</span>;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 获取属性</span></span><br><span class="line"><span class="keyword">var</span> key = newObject.someKey;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 2\. “方括号”法</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 设置属性</span></span><br><span class="line">newObject[<span class="string">"someKey"</span>] = <span class="string">"Hello World"</span>;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 获取属性</span></span><br><span class="line"><span class="keyword">var</span> key = newObject[<span class="string">"someKey"</span>];</span><br><span class="line"></span><br><span class="line"><span class="comment">// ECMAScript 5 仅兼容性形式</span></span><br><span class="line"><span class="comment">// For more information see: http://kangax.github.com/es5-compat-table/</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 3\. Object.defineProperty方式</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 设置属性</span></span><br><span class="line"><span class="built_in">Object</span>.defineProperty( newObject, <span class="string">"someKey"</span>, &#123;</span><br><span class="line">    value: <span class="string">"for more control of the property's behavior"</span>,</span><br><span class="line">    writable: <span class="literal">true</span>,</span><br><span class="line">    enumerable: <span class="literal">true</span>,</span><br><span class="line">    configurable: <span class="literal">true</span></span><br><span class="line">&#125;);</span><br><span class="line"></span><br><span class="line"><span class="comment">// 如果上面的方式你感到难以阅读，可以简短的写成下面这样：</span></span><br><span class="line"></span><br><span class="line"><span class="keyword">var</span> defineProp = <span class="function"><span class="keyword">function</span> (<span class="params"> obj, key, value </span>)</span>&#123;</span><br><span class="line">  config.value = value;</span><br><span class="line">  <span class="built_in">Object</span>.defineProperty( obj, key, config );</span><br><span class="line">&#125;;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 为了使用它，我们要创建一个“person”对象</span></span><br><span class="line"><span class="keyword">var</span> person = <span class="built_in">Object</span>.create( <span class="literal">null</span> );</span><br><span class="line"></span><br><span class="line"><span class="comment">// 用属性构造对象</span></span><br><span class="line">defineProp( person, <span class="string">"car"</span>,  <span class="string">"Delorean"</span> );</span><br><span class="line">defineProp( person, <span class="string">"dateOfBirth"</span>, <span class="string">"1981"</span> );</span><br><span class="line">defineProp( person, <span class="string">"hasBeard"</span>, <span class="literal">false</span> );</span><br><span class="line"></span><br><span class="line"><span class="comment">// 4\. Object.defineProperties方式</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 设置属性</span></span><br><span class="line"><span class="built_in">Object</span>.defineProperties( newObject, &#123;</span><br><span class="line"></span><br><span class="line">  <span class="string">"someKey"</span>: &#123; </span><br><span class="line">    value: <span class="string">"Hello World"</span>, </span><br><span class="line">    writable: <span class="literal">true</span> </span><br><span class="line">  &#125;,</span><br><span class="line"></span><br><span class="line">  <span class="string">"anotherKey"</span>: &#123; </span><br><span class="line">    value: <span class="string">"Foo bar"</span>, </span><br><span class="line">    writable: <span class="literal">false</span> </span><br><span class="line">  &#125; </span><br><span class="line"></span><br><span class="line">&#125;);</span><br><span class="line"></span><br><span class="line"><span class="comment">// 3和4中的读取属行可用1和2中的任意一种</span></span><br></pre></td></tr></table></figure>
<p>在这本书的后面一点，这些方法会被用于继承，如下：<br><figure class="highlight sqf"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 使用:</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 创建一个继承与Person的赛车司机</span></span><br><span class="line">var <span class="built_in">driver</span> = Object.create( person );</span><br><span class="line"></span><br><span class="line"><span class="comment">// 设置司机的属性</span></span><br><span class="line">defineProp(<span class="built_in">driver</span>, <span class="string">"topSpeed"</span>, <span class="string">"100mph"</span>);</span><br><span class="line"></span><br><span class="line"><span class="comment">// 获取继承的属性 (1981)</span></span><br><span class="line">console.<span class="built_in">log</span>( <span class="built_in">driver</span>.dateOfBirth );</span><br><span class="line"></span><br><span class="line"><span class="comment">// 获取我们设置的属性 (100mph)</span></span><br><span class="line">console.<span class="built_in">log</span>( <span class="built_in">driver</span>.topSpeed );</span><br></pre></td></tr></table></figure></p>
<h1 id="基础构造器"><a href="#基础构造器" class="headerlink" title="基础构造器"></a>基础构造器</h1><p>正如我们先前所看到的，在ES6没有出来之前Javascript不支持类的概念，但它有一种与对象一起工作的构造器函数。使用new关键字来调用该函数，我们可以告诉Javascript把这个函数当做一个构造器来用,它可以用自己所定义的成员来初始化一个对象。</p>
<p>在这个构造器内部，关键字this引用到刚被创建的对象。回到对象创建，一个基本的构造函数看起来像这样:</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">Car</span>(<span class="params"> model, year, miles </span>) </span>&#123;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">this</span>.model = model;</span><br><span class="line">  <span class="keyword">this</span>.year = year;</span><br><span class="line">  <span class="keyword">this</span>.miles = miles;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">this</span>.toString = <span class="function"><span class="keyword">function</span> (<span class="params"></span>) </span>&#123;</span><br><span class="line">    <span class="keyword">return</span> <span class="keyword">this</span>.model + <span class="string">" has done "</span> + <span class="keyword">this</span>.miles + <span class="string">" miles"</span>;</span><br><span class="line">  &#125;;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 使用:</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 我们可以示例化一个Car</span></span><br><span class="line"><span class="keyword">var</span> civic = <span class="keyword">new</span> Car( <span class="string">"Honda Civic"</span>, <span class="number">2009</span>, <span class="number">20000</span> );</span><br><span class="line"><span class="keyword">var</span> mondeo = <span class="keyword">new</span> Car( <span class="string">"Ford Mondeo"</span>, <span class="number">2010</span>, <span class="number">5000</span> );</span><br><span class="line"></span><br><span class="line"><span class="comment">// 打开浏览器控制台查看这些对象toString()方法的输出值</span></span><br><span class="line"><span class="comment">// output of the toString() method being called on</span></span><br><span class="line"><span class="comment">// these objects</span></span><br><span class="line"><span class="built_in">console</span>.log( civic.toString() );</span><br><span class="line"><span class="built_in">console</span>.log( mondeo.toString() );</span><br></pre></td></tr></table></figure>
<p>上面这是个简单版本的构造器模式，但它还是有些问题。一个是难以继承，另一个是每个Car构造函数创建的对象中，toString()之类的函数都被重新定义。这不是非常好，理想的情况是所有Car类型的对象都应该引用同一个函数。 这要谢谢 ECMAScript3和ECMAScript5-兼容版，对于构造对象他们提供了另外一些选择，解决限制小菜一碟。</p>
<h1 id="使用“原型”的构造器"><a href="#使用“原型”的构造器" class="headerlink" title="使用“原型”的构造器"></a>使用“原型”的构造器</h1><p>在Javascript中函数有一个prototype的属性。当我们调用Javascript的构造器创建一个对象时，构造函数prototype上的属性对于所创建的对象来说都看见。照这样，就可以创建多个访问相同prototype的Car对象了。下面，我们来扩展一下原来的例子：</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">Car</span>(<span class="params"> model, year, miles </span>) </span>&#123;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">this</span>.model = model;</span><br><span class="line">  <span class="keyword">this</span>.year = year;</span><br><span class="line">  <span class="keyword">this</span>.miles = miles;</span><br><span class="line"></span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 注意这里我们使用Note here that we are using Object.prototype.newMethod 而不是</span></span><br><span class="line"><span class="comment">// Object.prototype ，以避免我们重新定义原型对象</span></span><br><span class="line">Car.prototype.toString = <span class="function"><span class="keyword">function</span> (<span class="params"></span>) </span>&#123;</span><br><span class="line">  <span class="keyword">return</span> <span class="keyword">this</span>.model + <span class="string">" has done "</span> + <span class="keyword">this</span>.miles + <span class="string">" miles"</span>;</span><br><span class="line">&#125;;</span><br><span class="line"></span><br><span class="line"><span class="comment">// 使用:</span></span><br><span class="line"></span><br><span class="line"><span class="keyword">var</span> civic = <span class="keyword">new</span> Car( <span class="string">"Honda Civic"</span>, <span class="number">2009</span>, <span class="number">20000</span> );</span><br><span class="line"><span class="keyword">var</span> mondeo = <span class="keyword">new</span> Car( <span class="string">"Ford Mondeo"</span>, <span class="number">2010</span>, <span class="number">5000</span> );</span><br><span class="line"></span><br><span class="line"><span class="built_in">console</span>.log( civic.toString() );</span><br><span class="line"><span class="built_in">console</span>.log( mondeo.toString() );</span><br></pre></td></tr></table></figure>
<p>通过上面代码，单个toString()实例被所有的Car对象所共享了。</p>
<h1 id="ES6的构造器模式"><a href="#ES6的构造器模式" class="headerlink" title="ES6的构造器模式"></a>ES6的构造器模式</h1><p>建议使用ES6的用法来实现构造器模式，ES6定义Class可以继承。</p>
<figure class="highlight kotlin"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">//ES6 </span></span><br><span class="line"> <span class="class"><span class="keyword">class</span> <span class="title">Car</span></span>&#123;</span><br><span class="line">     <span class="keyword">constructor</span>(model,year,miles)&#123;</span><br><span class="line">         <span class="keyword">this</span>.model = model;</span><br><span class="line">         <span class="keyword">this</span>.year = year;</span><br><span class="line">         <span class="keyword">this</span>.miles = miles;</span><br><span class="line">     &#125;</span><br><span class="line">    </span><br><span class="line">     tostring ()&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="keyword">this</span>.model + <span class="string">" has done "</span> + <span class="keyword">this</span>.miles + <span class="string">" miles"</span>;</span><br><span class="line">     &#125;</span><br><span class="line"></span><br><span class="line">   &#125;</span><br><span class="line"></span><br><span class="line">   <span class="keyword">var</span> civic = new Car( <span class="string">"Honda Civic"</span>, <span class="number">2009</span>, <span class="number">20000</span> );</span><br><span class="line">   <span class="keyword">var</span> mondeo = new Car( <span class="string">"Ford Mondeo"</span>, <span class="number">2010</span>, <span class="number">5000</span> );</span><br><span class="line">   </span><br><span class="line">   console.log( civic.tostring() ); <span class="comment">//Honda Civic has done 20000 miles</span></span><br><span class="line">   console.log( mondeo.tostring() ); <span class="comment">//Ford Mondeo has done 5000 miles</span></span><br></pre></td></tr></table></figure>
<p>继承实例：</p>
<figure class="highlight scala"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">Car</span></span>&#123;</span><br><span class="line">    constructor(model,year,miles)&#123;</span><br><span class="line">        <span class="keyword">this</span>.model = model;</span><br><span class="line">        <span class="keyword">this</span>.year = year;</span><br><span class="line">        <span class="keyword">this</span>.miles = miles;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">     tostring ()&#123;</span><br><span class="line">       <span class="keyword">return</span> <span class="keyword">this</span>.model + <span class="string">" has done "</span> + <span class="keyword">this</span>.miles + <span class="string">" miles"</span>;</span><br><span class="line">    &#125;</span><br><span class="line"></span><br><span class="line">  &#125;</span><br><span class="line">  </span><br><span class="line"> </span><br><span class="line"></span><br><span class="line">  <span class="class"><span class="keyword">class</span> <span class="title">kaCar</span> <span class="keyword">extends</span> <span class="title">Car</span></span>&#123;</span><br><span class="line"></span><br><span class="line"></span><br><span class="line">  &#125;</span><br><span class="line">  <span class="keyword">var</span> civic = <span class="keyword">new</span> kaCar( <span class="string">"Honda Civic"</span>, <span class="number">2009</span>, <span class="number">20000</span> );</span><br><span class="line">  <span class="keyword">var</span> mondeo = <span class="keyword">new</span> kaCar( <span class="string">"Ford Mondeo"</span>, <span class="number">2010</span>, <span class="number">5000</span> );</span><br><span class="line"></span><br><span class="line"></span><br><span class="line">  console.log( civic.tostring() );  <span class="comment">//Honda Civic has done 20000 miles</span></span><br><span class="line">  console.log( mondeo.tostring() );  <span class="comment">//Ford Mondeo has done 5000 miles</span></span><br></pre></td></tr></table></figure>
<p>从上面实例我们可以看出kaCar完全继承了Car的tostring()方法。</p>
<h1 id="TypeScript的构造器模式"><a href="#TypeScript的构造器模式" class="headerlink" title="TypeScript的构造器模式"></a>TypeScript的构造器模式</h1><figure class="highlight typescript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">class</span> Car&#123;</span><br><span class="line">      model:<span class="built_in">string</span>;</span><br><span class="line">      year:<span class="built_in">number</span>;</span><br><span class="line">      miles:<span class="built_in">number</span>;</span><br><span class="line">      <span class="keyword">constructor</span>(<span class="params">model:<span class="built_in">string</span>,year:<span class="built_in">number</span>,miles:<span class="built_in">number</span></span>)&#123;</span><br><span class="line">          <span class="keyword">this</span>.model = model;</span><br><span class="line">          <span class="keyword">this</span>.year = year;</span><br><span class="line">          <span class="keyword">this</span>.miles = miles;</span><br><span class="line">      &#125;</span><br><span class="line">      tostring():<span class="built_in">string</span>&#123;</span><br><span class="line">          <span class="keyword">return</span> <span class="string">`<span class="subst">$&#123;<span class="keyword">this</span>.model&#125;</span> has done <span class="subst">$&#123;<span class="keyword">this</span>.miles&#125;</span> miles`</span>;</span><br><span class="line">      &#125;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">var</span> civic = <span class="keyword">new</span> kaCar( <span class="string">"Honda Civic"</span>, <span class="number">2009</span>, <span class="number">20000</span> );</span><br><span class="line"> <span class="keyword">var</span> mondeo = <span class="keyword">new</span> kaCar( <span class="string">"Ford Mondeo"</span>, <span class="number">2010</span>, <span class="number">5000</span> );</span><br><span class="line"></span><br><span class="line">  <span class="built_in">console</span>.log( civic.tostring() );  <span class="comment">//Honda Civic has done 20000 miles</span></span><br><span class="line">  <span class="built_in">console</span>.log( mondeo.tostring() ); <span class="comment">//Ford Mondeo has done 5000 miles</span></span><br></pre></td></tr></table></figure>

      
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#构造器模式"><span class="nav-number">1.</span> <span class="nav-text">构造器模式</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#对象创建"><span class="nav-number">2.</span> <span class="nav-text">对象创建</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#基础构造器"><span class="nav-number">3.</span> <span class="nav-text">基础构造器</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#使用“原型”的构造器"><span class="nav-number">4.</span> <span class="nav-text">使用“原型”的构造器</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#ES6的构造器模式"><span class="nav-number">5.</span> <span class="nav-text">ES6的构造器模式</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#TypeScript的构造器模式"><span class="nav-number">6.</span> <span class="nav-text">TypeScript的构造器模式</span></a></li></ol></div>
            

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